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<div class="title">qwt_plot_vectorfield.cpp</div>  </div>
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<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;qwt_plot_vectorfield.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;qwt_vectorfield_symbol.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &quot;qwt_scale_map.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &quot;qwt_color_map.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &quot;qwt_painter.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &quot;qwt_text.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &quot;qwt_graphic.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &quot;qwt_math.h&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160; </div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;qpainter.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;qpainterpath.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;qdebug.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;cstdlib&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;limits&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160; </div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#define DEBUG_RENDER 0</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160; </div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#if DEBUG_RENDER</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;qelapsedtimer.h&gt;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">double</span> qwtVector2Radians( <span class="keywordtype">double</span> vx, <span class="keywordtype">double</span> vy )</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;{</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    <span class="keywordflow">if</span> ( vx == 0.0 )</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;        <span class="keywordflow">return</span> ( vy &gt;= 0 ) ? M_PI_2 : 3 * M_PI_2;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="keywordflow">return</span> std::atan2( vy, vx );</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;}</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160; </div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">double</span> qwtVector2Magnitude( <span class="keywordtype">double</span> vx, <span class="keywordtype">double</span> vy )</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;{</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    <span class="keywordflow">return</span> sqrt( vx * vx + vy * vy );</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;}</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160; </div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">static</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> qwtMagnitudeRange(</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QwtVectorFieldSample &gt;</a>* series )</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;{</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <span class="keywordflow">if</span> ( series-&gt;<a class="code" href="class_qwt_series_data.html#a3cfe5b26fc55a887ac85b0103ae80a3e">size</a>() == 0 )</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>( 0, 1 );</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_vector_field_sample.html">QwtVectorFieldSample</a> s0 = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( 0 );</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160; </div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    <span class="keywordtype">double</span> min = s0.<a class="code" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a> * s0.<a class="code" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a> + s0.<a class="code" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a> * s0.<a class="code" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a>;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <span class="keywordtype">double</span> max = min;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160; </div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="keywordflow">for</span> ( uint i = 1; i &lt; series-&gt;<a class="code" href="class_qwt_series_data.html#a3cfe5b26fc55a887ac85b0103ae80a3e">size</a>(); i++ )</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    {</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_qwt_vector_field_sample.html">QwtVectorFieldSample</a> s = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">double</span> l = s.<a class="code" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a> * s.<a class="code" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a> + s.<a class="code" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a> * s.<a class="code" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a>;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        <span class="keywordflow">if</span> ( l &lt; min )</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            min = l;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160; </div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        <span class="keywordflow">if</span> ( l &gt; max )</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            max = l;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    }</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160; </div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    min = std::sqrt( min );</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    max = std::sqrt( max );</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160; </div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordflow">if</span> ( max == min )</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        max += 1.0;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160; </div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>( min, max );</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;}</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160; </div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> QTransform qwtSymbolTransformation(</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keyword">const</span> QTransform&amp; oldTransform, <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y,</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="keywordtype">double</span> vx, <span class="keywordtype">double</span> vy, <span class="keywordtype">double</span> magnitude )</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;{</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    QTransform transform = oldTransform;</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160; </div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keywordflow">if</span> ( !transform.isIdentity() )</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    {</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        transform.translate( x, y );</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">double</span> radians = qwtVector2Radians( vx, vy );</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        transform.rotateRadians( radians );</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    }</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    {</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="comment">            When starting with no transformation ( f.e on screen )</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="comment">            the matrix can be found without having to use</span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="comment">            trigonometric functions</span></div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        qreal sin, cos;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        <span class="keywordflow">if</span> ( magnitude == 0.0 )</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        {</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;            <span class="comment">// something</span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;            sin = 1.0;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;            cos = 0.0;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        }</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        {</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;            sin = vy / magnitude;</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;            cos = vx / magnitude;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        }</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        transform.setMatrix( cos, sin, 0.0, -sin, cos, 0.0, x, y, 1.0 );</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    }</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    <span class="keywordflow">return</span> transform;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;}</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="keyword">namespace</span></div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;{</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="keyword">class </span>FilterMatrix</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    {</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;      <span class="keyword">public</span>:</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        <span class="keyword">class </span>Entry</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        {</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;          <span class="keyword">public</span>:</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;            <span class="keyword">inline</span> <span class="keywordtype">void</span> addSample( <span class="keywordtype">double</span> sx, <span class="keywordtype">double</span> sy,</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;                <span class="keywordtype">double</span> svx, <span class="keywordtype">double</span> svy )</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            {</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                x += sx;</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;                y += sy;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;                vx += svx;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;                vy += svy;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160; </div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;                count++;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;            }</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160; </div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;            quint32 count;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160; </div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            <span class="comment">// screen positions -&gt; float is good enough</span></div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;            <span class="keywordtype">float</span> x;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;            <span class="keywordtype">float</span> y;</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;            <span class="keywordtype">float</span> vx;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;            <span class="keywordtype">float</span> vy;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        };</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160; </div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        FilterMatrix( <span class="keyword">const</span> QRectF&amp; dataRect,</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;            <span class="keyword">const</span> QRectF&amp; canvasRect, <span class="keyword">const</span> QSizeF&amp; cellSize )</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        {</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;            m_dx = cellSize.width();</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;            m_dy = cellSize.height();</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160; </div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;            m_x0 = dataRect.x();</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;            <span class="keywordflow">if</span> ( m_x0 &lt; canvasRect.x() )</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                m_x0 += int( ( canvasRect.x() - m_x0 ) / m_dx ) * m_dx;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; </div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;            m_y0 = dataRect.y();</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;            <span class="keywordflow">if</span> ( m_y0 &lt; canvasRect.y() )</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;                m_y0 += int( ( canvasRect.y() - m_y0 ) / m_dy ) * m_dy;</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160; </div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;            m_numColumns = canvasRect.width() / m_dx + 1;</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;            m_numRows = canvasRect.height() / m_dy + 1;</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160; </div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="preprocessor">#if 1</span></div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="comment">                limit column and row count to a maximum of 1000000,</span></div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="comment">                so that memory usage is not an issue</span></div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;            <span class="keywordflow">if</span> ( m_numColumns &gt; 1000 )</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            {</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                m_dx = canvasRect.width() / 1000;</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;                m_numColumns = canvasRect.width() / m_dx + 1;</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;            }</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160; </div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;            <span class="keywordflow">if</span> ( m_numRows &gt; 1000 )</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;            {</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                m_dy = canvasRect.height() / 1000;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                m_numRows = canvasRect.height() / m_dx + 1;</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;            }</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160; </div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;            m_x1 = m_x0 + m_numColumns * m_dx;</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;            m_y1 = m_y0 + m_numRows * m_dy;</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160; </div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;            m_entries = ( Entry* )::calloc( m_numRows * m_numColumns, <span class="keyword">sizeof</span>( Entry ) );</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;            <span class="keywordflow">if</span> ( m_entries == NULL )</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;            {</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;                qWarning() &lt;&lt; <span class="stringliteral">&quot;QwtPlotVectorField: raster for filtering too fine - running out of memory&quot;</span>;</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;            }</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;        }</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160; </div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;        ~FilterMatrix()</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        {</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;            <span class="keywordflow">if</span> ( m_entries )</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;                std::free( m_entries );</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;        }</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160; </div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">int</span> numColumns()<span class="keyword"> const</span></div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;<span class="keyword">        </span>{</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;            <span class="keywordflow">return</span> m_numColumns;</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;        }</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160; </div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">int</span> numRows()<span class="keyword"> const</span></div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="keyword">        </span>{</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;            <span class="keywordflow">return</span> m_numRows;</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;        }</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160; </div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">void</span> addSample( <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y,</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            <span class="keywordtype">double</span> u, <span class="keywordtype">double</span> v )</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;        {</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            <span class="keywordflow">if</span> ( x &gt;= m_x0 &amp;&amp; x &lt; m_x1</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;                &amp;&amp; y &gt;= m_y0 &amp;&amp; y &lt; m_y1 )</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;            {</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;                Entry&amp; entry = m_entries[ indexOf( x, y ) ];</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;                entry.addSample( x, y, u, v );</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;            }</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;        }</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160; </div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;        <span class="keyword">const</span> FilterMatrix::Entry* entries()<span class="keyword"> const</span></div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="keyword">        </span>{</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;            <span class="keywordflow">return</span> m_entries;</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;        }</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160; </div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;      <span class="keyword">private</span>:</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">int</span> indexOf( qreal x, qreal y )<span class="keyword"> const</span></div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;<span class="keyword">        </span>{</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> col = ( x - m_x0 ) / m_dx;</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> row = ( y - m_y0 ) / m_dy;</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160; </div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;            <span class="keywordflow">return</span> row * m_numColumns + col;</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;        }</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160; </div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        qreal m_x0, m_x1, m_y0, m_y1, m_dx, m_dy;</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;        <span class="keywordtype">int</span> m_numColumns;</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;        <span class="keywordtype">int</span> m_numRows;</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160; </div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        Entry* m_entries;</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    };</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;}</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160; </div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;<span class="keyword">class </span>QwtPlotVectorField::PrivateData</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;{</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    PrivateData()</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;        : <a class="code" href="class_qwt_plot_vector_field.html#a1a63b3f5293ff6fbfb931df342e8d7d2">pen</a>( Qt::black )</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;        , <a class="code" href="class_qwt_plot_vector_field.html#a01fd3e6e440e531789e306d8c507f5d9">brush</a>( Qt::black )</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;        , <a class="code" href="class_qwt_plot_vector_field.html#ae5fd282a030036785e35cbad1d5e9e0c">indicatorOrigin</a>( <a class="code" href="class_qwt_plot_vector_field.html">QwtPlotVectorField</a>::<a class="code" href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571acf5b22bce1919d4cb2c6c7fd79e307a7">OriginHead</a> )</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        , <a class="code" href="class_qwt_plot_vector_field.html#a19009160ac0a5e6be44fffc0455654f7">magnitudeScaleFactor</a>( 1.0 )</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;        , <a class="code" href="class_qwt_plot_vector_field.html#a97cf430b53666f8d68ca117b9eec3ceb">rasterSize</a>( 20, 20 )</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;        , <a class="code" href="class_qwt_plot_vector_field.html#af56fcb52d233930212c26a9fb048caea">minArrowLength</a>( 0.0 )</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;        , <a class="code" href="class_qwt_plot_vector_field.html#ab7a19eb6cfbace3f9c4415c74133e087">maxArrowLength</a>( std::numeric_limits&lt; short &gt;::max() )</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;        , magnitudeModes( <a class="code" href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0a651b4cb5bb5f2e02f8335712b72d8be6">MagnitudeAsLength</a> )</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    {</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;        <a class="code" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">colorMap</a> = NULL;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;        <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a> = <span class="keyword">new</span> <a class="code" href="class_qwt_vector_field_thin_arrow.html">QwtVectorFieldThinArrow</a>();</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;    }</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160; </div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;    ~PrivateData()</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;    {</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;        <span class="keyword">delete</span> <a class="code" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">colorMap</a>;</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;        <span class="keyword">delete</span> <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a>;</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    }</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160; </div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;    QPen <a class="code" href="class_qwt_plot_vector_field.html#a1a63b3f5293ff6fbfb931df342e8d7d2">pen</a>;</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;    QBrush <a class="code" href="class_qwt_plot_vector_field.html#a01fd3e6e440e531789e306d8c507f5d9">brush</a>;</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160; </div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571">IndicatorOrigin</a> <a class="code" href="class_qwt_plot_vector_field.html#ae5fd282a030036785e35cbad1d5e9e0c">indicatorOrigin</a>;</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    <a class="code" href="class_qwt_vector_field_symbol.html">QwtVectorFieldSymbol</a>* <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a>;</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;    <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>* <a class="code" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">colorMap</a>;</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160; </div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;<span class="comment">        Stores the range of magnitudes to be used for the color map.</span></div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;<span class="comment">        If invalid (min=max or negative values), the range is determined</span></div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;<span class="comment">        from the data samples themselves.</span></div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;    <a class="code" href="class_qwt_interval.html">QwtInterval</a> <a class="code" href="class_qwt_plot_vector_field.html#ad2913c3eba5c71bdc378d150f374857c">magnitudeRange</a>;</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    <a class="code" href="class_qwt_interval.html">QwtInterval</a> boundingMagnitudeRange;</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160; </div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;    qreal <a class="code" href="class_qwt_plot_vector_field.html#a19009160ac0a5e6be44fffc0455654f7">magnitudeScaleFactor</a>;</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;    QSizeF <a class="code" href="class_qwt_plot_vector_field.html#a97cf430b53666f8d68ca117b9eec3ceb">rasterSize</a>;</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160; </div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;    <span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_vector_field.html#af56fcb52d233930212c26a9fb048caea">minArrowLength</a>;</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;    <span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_vector_field.html#ab7a19eb6cfbace3f9c4415c74133e087">maxArrowLength</a>;</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160; </div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#aa16b40c0eb7c57a78314d6c22455fb62">PaintAttributes</a> paintAttributes;</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#a89d58196d753477d0b00a81fc2b2ada2">MagnitudeModes</a> magnitudeModes;</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;};</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160; </div>
<div class="line"><a name="l00292"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#ae4a9ab5fa3d1f5483e12e9cd0afaca20">  292</a></span>&#160;<a class="code" href="class_qwt_plot_vector_field.html#a7755b9cf2f8dde31abcabc177c655930">QwtPlotVectorField::QwtPlotVectorField</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a>&amp; title )</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;    : <a class="code" href="class_qwt_plot_series_item.html">QwtPlotSeriesItem</a>( title )</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;{</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    init();</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;}</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160; </div>
<div class="line"><a name="l00302"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a7755b9cf2f8dde31abcabc177c655930">  302</a></span>&#160;<a class="code" href="class_qwt_plot_vector_field.html#a7755b9cf2f8dde31abcabc177c655930">QwtPlotVectorField::QwtPlotVectorField</a>( <span class="keyword">const</span> QString&amp; title )</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    : <a class="code" href="class_qwt_plot_series_item.html">QwtPlotSeriesItem</a>( <a class="code" href="class_qwt_text.html">QwtText</a>( title ) )</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;{</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;    init();</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;}</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160; </div>
<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a9a101453ba226a37850a75c6e05eea26">  309</a></span>&#160;<a class="code" href="class_qwt_plot_vector_field.html#a9a101453ba226a37850a75c6e05eea26">QwtPlotVectorField::~QwtPlotVectorField</a>()</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;{</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;    <span class="keyword">delete</span> m_data;</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;}</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160; </div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<span class="keywordtype">void</span> QwtPlotVectorField::init()</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;{</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>( <a class="code" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176">QwtPlotItem::Legend</a> );</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>( <a class="code" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48">QwtPlotItem::AutoScale</a> );</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160; </div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    m_data = <span class="keyword">new</span> PrivateData;</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;    <a class="code" href="class_qwt_series_store.html#add3ce83fe90e976b75a0ebaa79caee4c">setData</a>( <span class="keyword">new</span> <a class="code" href="class_qwt_vector_field_data.html">QwtVectorFieldData</a>() );</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160; </div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a57d90e4146133b59d589c71b3a643e82">setZ</a>( 20.0 );</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;}</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160; </div>
<div class="line"><a name="l00336"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a80eceb3f55d757875dd72c849e14787f">  336</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a80eceb3f55d757875dd72c849e14787f">QwtPlotVectorField::setPen</a>( <span class="keyword">const</span> QPen&amp; pen )</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;{</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;pen != <a class="code" href="class_qwt_plot_vector_field.html#a1a63b3f5293ff6fbfb931df342e8d7d2">pen</a> )</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;    {</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;        m_data-&gt;pen = <a class="code" href="class_qwt_plot_vector_field.html#a1a63b3f5293ff6fbfb931df342e8d7d2">pen</a>;</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160; </div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;        <a class="code" href="class_qwt_plot_item.html#a3967414c7542e267d0c2793f02be7241">legendChanged</a>();</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;    }</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;}</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160; </div>
<div class="line"><a name="l00351"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a1a63b3f5293ff6fbfb931df342e8d7d2">  351</a></span>&#160;QPen <a class="code" href="class_qwt_plot_vector_field.html#a1a63b3f5293ff6fbfb931df342e8d7d2">QwtPlotVectorField::pen</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;pen;</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;}</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160; </div>
<div class="line"><a name="l00364"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a2e5aea41d8d9e8dabb8e6c5a5ec49d1a">  364</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a2e5aea41d8d9e8dabb8e6c5a5ec49d1a">QwtPlotVectorField::setBrush</a>( <span class="keyword">const</span> QBrush&amp; brush )</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;{</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;brush != <a class="code" href="class_qwt_plot_vector_field.html#a01fd3e6e440e531789e306d8c507f5d9">brush</a> )</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;    {</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;        m_data-&gt;brush = <a class="code" href="class_qwt_plot_vector_field.html#a01fd3e6e440e531789e306d8c507f5d9">brush</a>;</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160; </div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;        <a class="code" href="class_qwt_plot_item.html#a3967414c7542e267d0c2793f02be7241">legendChanged</a>();</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;    }</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;}</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160; </div>
<div class="line"><a name="l00379"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a01fd3e6e440e531789e306d8c507f5d9">  379</a></span>&#160;QBrush <a class="code" href="class_qwt_plot_vector_field.html#a01fd3e6e440e531789e306d8c507f5d9">QwtPlotVectorField::brush</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;brush;</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;}</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160; </div>
<div class="line"><a name="l00390"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#ad74a054c1e46d3d3a80845a7e4c1975f">  390</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#ad74a054c1e46d3d3a80845a7e4c1975f">QwtPlotVectorField::setIndicatorOrigin</a>( <a class="code" href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571">IndicatorOrigin</a> origin )</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;{</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;    m_data-&gt;indicatorOrigin = origin;</div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;indicatorOrigin != origin )</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;    {</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;        m_data-&gt;indicatorOrigin = origin;</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;    }</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;}</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160; </div>
<div class="line"><a name="l00401"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#ae5fd282a030036785e35cbad1d5e9e0c">  401</a></span>&#160;<a class="code" href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571">QwtPlotVectorField::IndicatorOrigin</a> <a class="code" href="class_qwt_plot_vector_field.html#ae5fd282a030036785e35cbad1d5e9e0c">QwtPlotVectorField::indicatorOrigin</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;indicatorOrigin;</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;}</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160; </div>
<div class="line"><a name="l00417"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a5e796f08eb2c881651e32af04842a04e">  417</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a5e796f08eb2c881651e32af04842a04e">QwtPlotVectorField::setMagnitudeScaleFactor</a>( <span class="keywordtype">double</span> factor )</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;{</div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;    <span class="keywordflow">if</span> ( factor != m_data-&gt;magnitudeScaleFactor )</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;    {</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;        m_data-&gt;magnitudeScaleFactor = factor;</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;    }</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;}</div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160; </div>
<div class="line"><a name="l00440"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a19009160ac0a5e6be44fffc0455654f7">  440</a></span>&#160;<span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_vector_field.html#a19009160ac0a5e6be44fffc0455654f7">QwtPlotVectorField::magnitudeScaleFactor</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;magnitudeScaleFactor;</div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;}</div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160; </div>
<div class="line"><a name="l00450"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a26009c05bb8b9488c1324428cb0755e1">  450</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a26009c05bb8b9488c1324428cb0755e1">QwtPlotVectorField::setRasterSize</a>( <span class="keyword">const</span> QSizeF&amp; size )</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;{</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;    <span class="keywordflow">if</span> ( size != m_data-&gt;rasterSize )</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;    {</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;        m_data-&gt;rasterSize = size;</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;    }</div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;}</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160; </div>
<div class="line"><a name="l00463"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a97cf430b53666f8d68ca117b9eec3ceb">  463</a></span>&#160;QSizeF <a class="code" href="class_qwt_plot_vector_field.html#a97cf430b53666f8d68ca117b9eec3ceb">QwtPlotVectorField::rasterSize</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;rasterSize;</div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;}</div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160; </div>
<div class="line"><a name="l00475"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#aa3aa467051e319f919b9286002a2071f">  475</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#aa3aa467051e319f919b9286002a2071f">QwtPlotVectorField::setPaintAttribute</a>(</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#a7248530153feb2f93c579b73dcafec08">PaintAttribute</a> attribute, <span class="keywordtype">bool</span> on )</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;{</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#aa16b40c0eb7c57a78314d6c22455fb62">PaintAttributes</a> attributes = m_data-&gt;paintAttributes;</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160; </div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;    <span class="keywordflow">if</span> ( on )</div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;        attributes |= attribute;</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;        attributes &amp;= ~attribute;</div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160; </div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;paintAttributes != attributes )</div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;    {</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;        m_data-&gt;paintAttributes = attributes;</div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;    }</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;}</div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160; </div>
<div class="line"><a name="l00496"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a463593c25a15e635dc3b19da473f1fb8">  496</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_vector_field.html#a463593c25a15e635dc3b19da473f1fb8">QwtPlotVectorField::testPaintAttribute</a>(</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#a7248530153feb2f93c579b73dcafec08">PaintAttribute</a> attribute )<span class="keyword"> const</span></div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;    <span class="keywordflow">return</span> ( m_data-&gt;paintAttributes &amp; attribute );</div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;}</div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160; </div>
<div class="line"><a name="l00503"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a0eed2287ed78805a42a0e2c84dd36423">  503</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_vector_field.html#a0eed2287ed78805a42a0e2c84dd36423">QwtPlotVectorField::rtti</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_qwt_plot_item.html#ab149ac85e233ce9cedf2f2f2af871bf3a0619b6d42554232a9b6f4c79f69af8c3">QwtPlotItem::Rtti_PlotVectorField</a>;</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;}</div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160; </div>
<div class="line"><a name="l00516"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a457c094e431ed8fdab9a9d4a57e5ad11">  516</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a457c094e431ed8fdab9a9d4a57e5ad11">QwtPlotVectorField::setSymbol</a>( <a class="code" href="class_qwt_vector_field_symbol.html">QwtVectorFieldSymbol</a>* symbol )</div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;{</div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;symbol == <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a> )</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160; </div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;    <span class="keyword">delete</span> m_data-&gt;symbol;</div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;    m_data-&gt;symbol = <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a>;</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160; </div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;    <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a3967414c7542e267d0c2793f02be7241">legendChanged</a>();</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;}</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160; </div>
<div class="line"><a name="l00532"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">  532</a></span>&#160;<span class="keyword">const</span> <a class="code" href="class_qwt_vector_field_symbol.html">QwtVectorFieldSymbol</a>* <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">QwtPlotVectorField::symbol</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;symbol;</div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;}</div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160; </div>
<div class="line"><a name="l00541"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a213fd01893696958f68b2e777cb221a7">  541</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a213fd01893696958f68b2e777cb221a7">QwtPlotVectorField::setSamples</a>( <span class="keyword">const</span> <a class="code" href="class_q_vector.html">QVector&lt; QwtVectorFieldSample &gt;</a>&amp; samples )</div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;{</div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;    <a class="code" href="class_qwt_series_store.html#add3ce83fe90e976b75a0ebaa79caee4c">setData</a>( <span class="keyword">new</span> <a class="code" href="class_qwt_vector_field_data.html">QwtVectorFieldData</a>( samples ) );</div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;}</div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160; </div>
<div class="line"><a name="l00556"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a04ede8407e4b238e883c82d554f3c630">  556</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a213fd01893696958f68b2e777cb221a7">QwtPlotVectorField::setSamples</a>( <a class="code" href="class_qwt_vector_field_data.html">QwtVectorFieldData</a>* data )</div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;{</div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;    <a class="code" href="class_qwt_series_store.html#add3ce83fe90e976b75a0ebaa79caee4c">setData</a>( <a class="code" href="class_qwt_series_store.html#aae258d330c8d1bd2057b1f0bc13700f9">data</a> );</div>
<div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;}</div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160; </div>
<div class="line"><a name="l00571"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a6804e53113a7bc48fd2bf3cbe8428c03">  571</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a6804e53113a7bc48fd2bf3cbe8428c03">QwtPlotVectorField::setColorMap</a>( <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>* colorMap )</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;{</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">colorMap</a> == NULL )</div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160; </div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">colorMap</a> != m_data-&gt;colorMap )</div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;    {</div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;        <span class="keyword">delete</span> m_data-&gt;colorMap;</div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;        m_data-&gt;colorMap = <a class="code" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">colorMap</a>;</div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;    }</div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160; </div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;    <a class="code" href="class_qwt_plot_item.html#a3967414c7542e267d0c2793f02be7241">legendChanged</a>();</div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;    <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;}</div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160; </div>
<div class="line"><a name="l00590"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">  590</a></span>&#160;<span class="keyword">const</span> <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>* <a class="code" href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">QwtPlotVectorField::colorMap</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;colorMap;</div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;}</div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160; </div>
<div class="line"><a name="l00602"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#afe807893fae74709ff417c1bd51f0ed2">  602</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#afe807893fae74709ff417c1bd51f0ed2">QwtPlotVectorField::setMagnitudeMode</a>( <a class="code" href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0">MagnitudeMode</a> mode, <span class="keywordtype">bool</span> on )</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;{</div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;    <span class="keywordflow">if</span> ( on == <a class="code" href="class_qwt_plot_vector_field.html#a55e0e85dac0fc14a2091f5e27084c101">testMagnitudeMode</a>( mode ) )</div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160; </div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;    <span class="keywordflow">if</span> ( on )</div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;        m_data-&gt;magnitudeModes |= mode;</div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;        m_data-&gt;magnitudeModes &amp;= ~mode;</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160; </div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;    <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;}</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160; </div>
<div class="line"><a name="l00619"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a55e0e85dac0fc14a2091f5e27084c101">  619</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_vector_field.html#a55e0e85dac0fc14a2091f5e27084c101">QwtPlotVectorField::testMagnitudeMode</a>( <a class="code" href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0">MagnitudeMode</a> mode )<span class="keyword"> const</span></div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;magnitudeModes &amp; mode;</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;}</div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160; </div>
<div class="line"><a name="l00632"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a7e3b547c095cc7dbed4bcb204e923fb1">  632</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a7e3b547c095cc7dbed4bcb204e923fb1">QwtPlotVectorField::setMagnitudeRange</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>&amp; magnitudeRange )</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;{</div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;magnitudeRange != <a class="code" href="class_qwt_plot_vector_field.html#ad2913c3eba5c71bdc378d150f374857c">magnitudeRange</a> )</div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;    {</div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;        m_data-&gt;magnitudeRange = <a class="code" href="class_qwt_plot_vector_field.html#ad2913c3eba5c71bdc378d150f374857c">magnitudeRange</a>;</div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;    }</div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;}</div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160; </div>
<div class="line"><a name="l00645"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#ad2913c3eba5c71bdc378d150f374857c">  645</a></span>&#160;<a class="code" href="class_qwt_interval.html">QwtInterval</a> <a class="code" href="class_qwt_plot_vector_field.html#ad2913c3eba5c71bdc378d150f374857c">QwtPlotVectorField::magnitudeRange</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;magnitudeRange;</div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;}</div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160; </div>
<div class="line"><a name="l00658"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a4382fb20131213483e59e699b01bb870">  658</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a4382fb20131213483e59e699b01bb870">QwtPlotVectorField::setMinArrowLength</a>( <span class="keywordtype">double</span> length )</div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;{</div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;    length = qMax( length, 0.0 );</div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160; </div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;minArrowLength != length )</div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;    {</div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;        m_data-&gt;minArrowLength = length;</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;    }</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;}</div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160; </div>
<div class="line"><a name="l00675"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#af56fcb52d233930212c26a9fb048caea">  675</a></span>&#160;<span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_vector_field.html#af56fcb52d233930212c26a9fb048caea">QwtPlotVectorField::minArrowLength</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;minArrowLength;</div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;}</div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160; </div>
<div class="line"><a name="l00688"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a661cdf75a6bac53a3073d11c69775a80">  688</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a661cdf75a6bac53a3073d11c69775a80">QwtPlotVectorField::setMaxArrowLength</a>( <span class="keywordtype">double</span> length )</div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;{</div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;    length = qMax( length, 0.0 );</div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160; </div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;maxArrowLength != length )</div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;    {</div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;        m_data-&gt;maxArrowLength = length;</div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;        <a class="code" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();</div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;    }</div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;}</div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160; </div>
<div class="line"><a name="l00705"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#ab7a19eb6cfbace3f9c4415c74133e087">  705</a></span>&#160;<span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_vector_field.html#ab7a19eb6cfbace3f9c4415c74133e087">QwtPlotVectorField::maxArrowLength</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;maxArrowLength;</div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;}</div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160; </div>
<div class="line"><a name="l00726"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#ae1de36a7bdd878735852c9567773586a">  726</a></span>&#160;<span class="keywordtype">double</span> <a class="code" href="class_qwt_plot_vector_field.html#ae1de36a7bdd878735852c9567773586a">QwtPlotVectorField::arrowLength</a>( <span class="keywordtype">double</span> magnitude )<span class="keyword"> const</span></div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;<span class="preprocessor">#if 0</span></div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;<span class="comment">       Normalize magnitude with respect to value range.  Then, magnitudeScaleFactor</span></div>
<div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;<span class="comment">       is the number of pixels to draw for a vector of length equal to</span></div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;<span class="comment">       magnitudeRange.maxValue(). The relative scaling ensures that change of data</span></div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;<span class="comment">       samples of very different magnitudes will always lead to a reasonable</span></div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;<span class="comment">       display on screen.</span></div>
<div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_vector_field_data.html">QwtVectorFieldData</a>* vectorData = <span class="keyword">dynamic_cast&lt;</span> <span class="keyword">const </span><a class="code" href="class_qwt_vector_field_data.html">QwtVectorFieldData</a>* <span class="keyword">&gt;</span>( <a class="code" href="class_qwt_series_store.html#aae258d330c8d1bd2057b1f0bc13700f9">data</a>() );</div>
<div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;magnitudeRange.maxValue() &gt; 0 )</div>
<div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;        magnitude /= m_data-&gt;magnitudeRange.maxValue();</div>
<div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160; </div>
<div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;    <span class="keywordtype">double</span> length = magnitude * m_data-&gt;magnitudeScaleFactor;</div>
<div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160; </div>
<div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160;    <span class="keywordflow">if</span> ( length &gt; 0.0 )</div>
<div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;        length = qBound( m_data-&gt;minArrowLength, length, m_data-&gt;maxArrowLength );</div>
<div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160; </div>
<div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;    <span class="keywordflow">return</span> length;</div>
<div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;}</div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160; </div>
<div class="line"><a name="l00749"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a49975f6e721381c1745e32a5ee6d0ca0">  749</a></span>&#160;QRectF <a class="code" href="class_qwt_plot_vector_field.html#a49975f6e721381c1745e32a5ee6d0ca0">QwtPlotVectorField::boundingRect</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;<span class="preprocessor">#if 0</span></div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;<span class="comment">        The bounding rectangle of the samples comes from the origins</span></div>
<div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;<span class="comment">        only, but as we know the scaling factor for the magnitude</span></div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;<span class="comment">        ( qwtVector2Magnitude ) here, we could try to include it ?</span></div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160; </div>
<div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_qwt_plot_series_item.html#add9915c6088f9854826c0f91e9fd78cd">QwtPlotSeriesItem::boundingRect</a>();</div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;}</div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160; </div>
<div class="line"><a name="l00770"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a0be7b670f4df03bf05c82e6b3a457441">  770</a></span>&#160;<a class="code" href="class_qwt_graphic.html">QwtGraphic</a> <a class="code" href="class_qwt_plot_vector_field.html#a0be7b670f4df03bf05c82e6b3a457441">QwtPlotVectorField::legendIcon</a>(</div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;    <span class="keywordtype">int</span> index, <span class="keyword">const</span> QSizeF&amp; size )<span class="keyword"> const</span></div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;    Q_UNUSED( index );</div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160; </div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;    <a class="code" href="class_qwt_graphic.html">QwtGraphic</a> icon;</div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;    icon.<a class="code" href="class_qwt_graphic.html#acba8d73bc62bd15c15491d4a6e739869">setDefaultSize</a>( size );</div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160; </div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;    <span class="keywordflow">if</span> ( size.isEmpty() )</div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;        <span class="keywordflow">return</span> icon;</div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160; </div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;    QPainter painter( &amp;icon );</div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;    painter.setRenderHint( QPainter::Antialiasing,</div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;        <a class="code" href="class_qwt_plot_item.html#aca66d2161c8a6caf5ebef82f59770d15">testRenderHint</a>( <a class="code" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704ae0c9811915d496eaacbd749724647f13">QwtPlotItem::RenderAntialiased</a> ) );</div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160; </div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;    painter.translate( -size.width(), -0.5 * size.height() );</div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160; </div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;    painter.setPen( m_data-&gt;pen );</div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;    painter.setBrush( m_data-&gt;brush );</div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160; </div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;    m_data-&gt;symbol-&gt;setLength( size.width() - 2 );</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;    m_data-&gt;symbol-&gt;paint( &amp;painter );</div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160; </div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;    <span class="keywordflow">return</span> icon;</div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;}</div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160; </div>
<div class="line"><a name="l00807"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a283e774553b87acd67d08653018d8ca4">  807</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a283e774553b87acd67d08653018d8ca4">QwtPlotVectorField::drawSeries</a>( QPainter* painter,</div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;    <span class="keyword">const</span> QRectF&amp; canvasRect, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )<span class="keyword"> const</span></div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;    <span class="keywordflow">if</span> ( !painter || <a class="code" href="class_qwt_series_store.html#a6391ad8acc1b3946006451f54a6558de">dataSize</a>() &lt;= 0 )</div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160; </div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;    <span class="keywordflow">if</span> ( to &lt; 0 )</div>
<div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;        to = <a class="code" href="class_qwt_series_store.html#a6391ad8acc1b3946006451f54a6558de">dataSize</a>() - 1;</div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160; </div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;    <span class="keywordflow">if</span> ( from &lt; 0 )</div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;        from = 0;</div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160; </div>
<div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;    <span class="keywordflow">if</span> ( from &gt; to )</div>
<div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160; </div>
<div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160;<span class="preprocessor">#if DEBUG_RENDER</span></div>
<div class="line"><a name="l00824"></a><span class="lineno">  824</span>&#160;    QElapsedTimer timer;</div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;    timer.start();</div>
<div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160; </div>
<div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#a66f567f4f40bbacf0e36a3df73a2cc47">drawSymbols</a>( painter, xMap, yMap, canvasRect, from, to );</div>
<div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160; </div>
<div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;<span class="preprocessor">#if DEBUG_RENDER</span></div>
<div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;    qDebug() &lt;&lt; timer.elapsed();</div>
<div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;}</div>
<div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160; </div>
<div class="line"><a name="l00847"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a66f567f4f40bbacf0e36a3df73a2cc47">  847</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a66f567f4f40bbacf0e36a3df73a2cc47">QwtPlotVectorField::drawSymbols</a>( QPainter* painter,</div>
<div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;    <span class="keyword">const</span> QRectF&amp; canvasRect, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )<span class="keyword"> const</span></div>
<div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> doAlign = <a class="code" href="class_qwt_painter.html#ae9af230df7bb8d40b802d4f3205a8631">QwtPainter::roundingAlignment</a>( painter );</div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> doClip = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160; </div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> isInvertingX = xMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>();</div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> isInvertingY = yMap.<a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">isInverting</a>();</div>
<div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160; </div>
<div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QwtVectorFieldSample &gt;</a>* series = <a class="code" href="class_qwt_series_store.html#aae258d330c8d1bd2057b1f0bc13700f9">data</a>();</div>
<div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160; </div>
<div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;magnitudeModes &amp; <a class="code" href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0ae09510491d44145cf28c4a9081aa2557">MagnitudeAsColor</a> )</div>
<div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;    {</div>
<div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;        <span class="comment">// user input error, can&#39;t draw without color map</span></div>
<div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;        <span class="comment">// TODO: Discuss! Without colormap, silently fall back to uniform colors?</span></div>
<div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160;        <span class="keywordflow">if</span> ( m_data-&gt;colorMap == NULL)</div>
<div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;    }</div>
<div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;    {</div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;        painter-&gt;setPen( m_data-&gt;pen );</div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;        painter-&gt;setBrush( m_data-&gt;brush );</div>
<div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;    }</div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160; </div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;    <span class="keywordflow">if</span> ( ( m_data-&gt;paintAttributes &amp; FilterVectors ) &amp;&amp; !m_data-&gt;rasterSize.isEmpty() )</div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;    {</div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;        <span class="keyword">const</span> QRectF <a class="code" href="class_qwt_series_store.html#aeb88b810f579a6cbf3af43b55aa073c0">dataRect</a> = <a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a>(</div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;            xMap, yMap, <a class="code" href="class_qwt_plot_vector_field.html#a49975f6e721381c1745e32a5ee6d0ca0">boundingRect</a>() );</div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160; </div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;        <span class="comment">// TODO: Discuss. How to handle raster size when switching from screen to print size!</span></div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;        <span class="comment">//       DPI-aware adjustment of rastersize? Or make &quot;rastersize in screen coordinate&quot;</span></div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;        <span class="comment">//       or &quot;rastersize in plotcoordinetes&quot; a user option?</span></div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;<span class="preprocessor">#if 1</span></div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;        <span class="comment">// define filter matrix based on screen/print coordinates</span></div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;        FilterMatrix matrix( <a class="code" href="class_qwt_series_store.html#aeb88b810f579a6cbf3af43b55aa073c0">dataRect</a>, canvasRect, m_data-&gt;rasterSize );</div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;        <span class="comment">// define filter matrix based on real coordinates</span></div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160; </div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;        <span class="comment">// get scale factor from real coordinates to screen coordinates</span></div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160;        <span class="keywordtype">double</span> xScale = 1;</div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;        <span class="keywordflow">if</span> (xMap.<a class="code" href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0">sDist</a>() != 0)</div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160;            xScale = xMap.<a class="code" href="class_qwt_scale_map.html#a456d76a849af8c465692c0481bdd12ad">pDist</a>() / xMap.<a class="code" href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0">sDist</a>();</div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160; </div>
<div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160;        <span class="keywordtype">double</span> yScale = 1;</div>
<div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;        <span class="keywordflow">if</span> (yMap.<a class="code" href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0">sDist</a>() != 0)</div>
<div class="line"><a name="l00893"></a><span class="lineno">  893</span>&#160;            yScale = yMap.<a class="code" href="class_qwt_scale_map.html#a456d76a849af8c465692c0481bdd12ad">pDist</a>() / yMap.<a class="code" href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0">sDist</a>();</div>
<div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160; </div>
<div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160;        QSizeF canvasRasterSize(xScale * m_data-&gt;rasterSize.width(), yScale * m_data-&gt;rasterSize.height() );</div>
<div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160;        FilterMatrix matrix( <a class="code" href="class_qwt_series_store.html#aeb88b810f579a6cbf3af43b55aa073c0">dataRect</a>, canvasRect, canvasRasterSize );</div>
<div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160; </div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from; i &lt;= to; i++ )</div>
<div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;        {</div>
<div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;            <span class="keyword">const</span> <a class="code" href="class_qwt_vector_field_sample.html">QwtVectorFieldSample</a> <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a> = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160;            <span class="keywordflow">if</span> ( !<a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#a8414f5ce56525413f83bb689a1bb1c79">isNull</a>() )</div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;            {</div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;                matrix.addSample( xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#ac5fb73df88676e3469f0113db40b8935">x</a> ),</div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;                    yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#a0e60522aea7d65d8340d691f797ddeb9">y</a> ), <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a>, <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a> );</div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;            }</div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;        }</div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160; </div>
<div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> numEntries = matrix.numRows() * matrix.numColumns();</div>
<div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;        <span class="keyword">const</span> FilterMatrix::Entry* entries = matrix.entries();</div>
<div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160; </div>
<div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; numEntries; i++ )</div>
<div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160;        {</div>
<div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160;            <span class="keyword">const</span> FilterMatrix::Entry&amp; entry = entries[i];</div>
<div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160; </div>
<div class="line"><a name="l00916"></a><span class="lineno">  916</span>&#160;            <span class="keywordflow">if</span> ( entry.count == 0 )</div>
<div class="line"><a name="l00917"></a><span class="lineno">  917</span>&#160;                <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00918"></a><span class="lineno">  918</span>&#160; </div>
<div class="line"><a name="l00919"></a><span class="lineno">  919</span>&#160;            <span class="keywordtype">double</span> xi = entry.x / entry.count;</div>
<div class="line"><a name="l00920"></a><span class="lineno">  920</span>&#160;            <span class="keywordtype">double</span> yi = entry.y / entry.count;</div>
<div class="line"><a name="l00921"></a><span class="lineno">  921</span>&#160; </div>
<div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;            <span class="keywordflow">if</span> ( doAlign )</div>
<div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;            {</div>
<div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;                xi = qRound( xi );</div>
<div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160;                yi = qRound( yi );</div>
<div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;            }</div>
<div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160; </div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> vx = entry.vx / entry.count;</div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> vy = entry.vy / entry.count;</div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160; </div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;            <a class="code" href="class_qwt_plot_vector_field.html#a484cd29099497da1f69b361f681d7b75">drawSymbol</a>( painter, xi, yi,</div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;                isInvertingX ? -vx : vx, isInvertingY ? -vy : vy );</div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160;        }</div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;    }</div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160;    {</div>
<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from; i &lt;= to; i++ )</div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;        {</div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;            <span class="keyword">const</span> <a class="code" href="class_qwt_vector_field_sample.html">QwtVectorFieldSample</a> <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a> = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160; </div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160;            <span class="comment">// arrows with zero length are never drawn</span></div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;            <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#a8414f5ce56525413f83bb689a1bb1c79">isNull</a>() )</div>
<div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160;                <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160; </div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;            <span class="keywordtype">double</span> xi = xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#ac5fb73df88676e3469f0113db40b8935">x</a> );</div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;            <span class="keywordtype">double</span> yi = yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#a0e60522aea7d65d8340d691f797ddeb9">y</a> );</div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160; </div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160;            <span class="keywordflow">if</span> ( doAlign )</div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;            {</div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;                xi = qRound( xi );</div>
<div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160;                yi = qRound( yi );</div>
<div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160;            }</div>
<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160; </div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;            <span class="keywordflow">if</span> ( doClip )</div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;            {</div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160;                <span class="keywordflow">if</span> ( !canvasRect.contains( xi, yi ) )</div>
<div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160;                    <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;            }</div>
<div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160; </div>
<div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;            <a class="code" href="class_qwt_plot_vector_field.html#a484cd29099497da1f69b361f681d7b75">drawSymbol</a>( painter, xi, yi,</div>
<div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;                isInvertingX ? -<a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a> : <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">vx</a>,</div>
<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;                isInvertingY ? -<a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a> : <a class="code" href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">sample</a>.<a class="code" href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">vy</a> );</div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160;        }</div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;    }</div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160;}</div>
<div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160; </div>
<div class="line"><a name="l00975"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#a484cd29099497da1f69b361f681d7b75">  975</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#a484cd29099497da1f69b361f681d7b75">QwtPlotVectorField::drawSymbol</a>( QPainter* painter,</div>
<div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160;    <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keywordtype">double</span> vx, <span class="keywordtype">double</span> vy )<span class="keyword"> const</span></div>
<div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> magnitude = qwtVector2Magnitude( vx, vy );</div>
<div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160; </div>
<div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160;    <span class="keyword">const</span> QTransform oldTransform = painter-&gt;transform();</div>
<div class="line"><a name="l00981"></a><span class="lineno">  981</span>&#160; </div>
<div class="line"><a name="l00982"></a><span class="lineno">  982</span>&#160;    QTransform transform = qwtSymbolTransformation( oldTransform,</div>
<div class="line"><a name="l00983"></a><span class="lineno">  983</span>&#160;        x, y, vx, vy, magnitude );</div>
<div class="line"><a name="l00984"></a><span class="lineno">  984</span>&#160; </div>
<div class="line"><a name="l00985"></a><span class="lineno">  985</span>&#160;    <a class="code" href="class_qwt_vector_field_symbol.html">QwtVectorFieldSymbol</a>* <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a> = m_data-&gt;symbol;</div>
<div class="line"><a name="l00986"></a><span class="lineno">  986</span>&#160; </div>
<div class="line"><a name="l00987"></a><span class="lineno">  987</span>&#160;    <span class="keywordtype">double</span> length = 0.0;</div>
<div class="line"><a name="l00988"></a><span class="lineno">  988</span>&#160; </div>
<div class="line"><a name="l00989"></a><span class="lineno">  989</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;magnitudeModes &amp; <a class="code" href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0a651b4cb5bb5f2e02f8335712b72d8be6">MagnitudeAsLength</a> )</div>
<div class="line"><a name="l00990"></a><span class="lineno">  990</span>&#160;    {</div>
<div class="line"><a name="l00991"></a><span class="lineno">  991</span>&#160;        length = <a class="code" href="class_qwt_plot_vector_field.html#ae1de36a7bdd878735852c9567773586a">arrowLength</a>( magnitude );</div>
<div class="line"><a name="l00992"></a><span class="lineno">  992</span>&#160;    }</div>
<div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160; </div>
<div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a>-&gt;<a class="code" href="class_qwt_vector_field_symbol.html#af40e032a493977db97f01f51aef4d54c">setLength</a>( length );</div>
<div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160; </div>
<div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;    <span class="keywordflow">if</span>( m_data-&gt;indicatorOrigin == <a class="code" href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571adc0cce3f3fcbdf529e94f603bdc06bee">OriginTail</a> )</div>
<div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160;    {</div>
<div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;        <span class="keyword">const</span> qreal dx = <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a>-&gt;<a class="code" href="class_qwt_vector_field_symbol.html#a1787b46abc657e989b32b2cceab8bf05">length</a>();</div>
<div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;        transform.translate( dx, 0.0 );</div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160;    }</div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( m_data-&gt;indicatorOrigin == <a class="code" href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571a40327520b5ebe964b2d19c148bb73d1c">OriginCenter</a> )</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>&#160;    {</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160;        <span class="keyword">const</span> qreal dx = <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a>-&gt;<a class="code" href="class_qwt_vector_field_symbol.html#a1787b46abc657e989b32b2cceab8bf05">length</a>();</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160;        transform.translate( 0.5 * dx, 0.0 );</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>&#160;    }</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160; </div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;magnitudeModes &amp; <a class="code" href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0ae09510491d44145cf28c4a9081aa2557">MagnitudeAsColor</a> )</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160;    {</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160;        <span class="comment">// Determine color for arrow if colored by magnitude.</span></div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160; </div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160;        <a class="code" href="class_qwt_interval.html">QwtInterval</a> range = m_data-&gt;magnitudeRange;</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160; </div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160;        <span class="keywordflow">if</span> ( !range.<a class="code" href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">isValid</a>() )</div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160;        {</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;            <span class="keywordflow">if</span> ( !m_data-&gt;boundingMagnitudeRange.isValid() )</div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160;                m_data-&gt;boundingMagnitudeRange = qwtMagnitudeRange( <a class="code" href="class_qwt_series_store.html#aae258d330c8d1bd2057b1f0bc13700f9">data</a>() );</div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160; </div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160;            range = m_data-&gt;boundingMagnitudeRange;</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160;        }</div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160; </div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160;        <span class="keyword">const</span> QColor c = m_data-&gt;colorMap-&gt;rgb( range, magnitude );</div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160; </div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160;<span class="preprocessor">#if 1</span></div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;        painter-&gt;setBrush( c );</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160;        painter-&gt;setPen( c );</div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160;    }</div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160; </div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160;    painter-&gt;setWorldTransform( transform, <span class="keyword">false</span> );</div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;    <a class="code" href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">symbol</a>-&gt;<a class="code" href="class_qwt_vector_field_symbol.html#a7c78e02177c6edd9a932bb7926d024a1">paint</a>( painter );</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160;    painter-&gt;setWorldTransform( oldTransform, <span class="keyword">false</span> );</div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160;}</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160; </div>
<div class="line"><a name="l01034"></a><span class="lineno"><a class="line" href="class_qwt_plot_vector_field.html#ac97e94bc324dedaedec0d3bab80bd4fe"> 1034</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_vector_field.html#ac97e94bc324dedaedec0d3bab80bd4fe">QwtPlotVectorField::dataChanged</a>()</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160;{</div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160;    m_data-&gt;boundingMagnitudeRange.invalidate();</div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160;    <a class="code" href="class_qwt_plot_series_item.html#a6361818c1d22e8ff4142ecdc755b54a9">QwtPlotSeriesItem::dataChanged</a>();</div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160;}</div>
<div class="ttc" id="aclass_q_vector_html"><div class="ttname"><a href="class_q_vector.html">QVector</a></div><div class="ttdef"><b>Definition:</b> <a href="qwt__clipper_8h_source.html#l00023">qwt_clipper.h:23</a></div></div>
<div class="ttc" id="aclass_qwt_color_map_html"><div class="ttname"><a href="class_qwt_color_map.html">QwtColorMap</a></div><div class="ttdoc">QwtColorMap is used to map values into colors.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__color__map_8h_source.html#l00037">qwt_color_map.h:38</a></div></div>
<div class="ttc" id="aclass_qwt_graphic_html"><div class="ttname"><a href="class_qwt_graphic.html">QwtGraphic</a></div><div class="ttdoc">A paint device for scalable graphics.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__graphic_8h_source.html#l00075">qwt_graphic.h:76</a></div></div>
<div class="ttc" id="aclass_qwt_graphic_html_acba8d73bc62bd15c15491d4a6e739869"><div class="ttname"><a href="class_qwt_graphic.html#acba8d73bc62bd15c15491d4a6e739869">QwtGraphic::setDefaultSize</a></div><div class="ttdeci">void setDefaultSize(const QSizeF &amp;)</div><div class="ttdoc">Set a default size.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__graphic_8cpp_source.html#l00553">qwt_graphic.cpp:553</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html"><div class="ttname"><a href="class_qwt_interval.html">QwtInterval</a></div><div class="ttdoc">A class representing an interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00022">qwt_interval.h:23</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_ad742235a737d4d0b12cba1cab2df55f3"><div class="ttname"><a href="class_qwt_interval.html#ad742235a737d4d0b12cba1cab2df55f3">QwtInterval::isValid</a></div><div class="ttdeci">bool isValid() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00210">qwt_interval.h:210</a></div></div>
<div class="ttc" id="aclass_qwt_painter_html_ae9af230df7bb8d40b802d4f3205a8631"><div class="ttname"><a href="class_qwt_painter.html#ae9af230df7bb8d40b802d4f3205a8631">QwtPainter::roundingAlignment</a></div><div class="ttdeci">static bool roundingAlignment()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__painter_8h_source.html#l00183">qwt_painter.h:183</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_a3967414c7542e267d0c2793f02be7241"><div class="ttname"><a href="class_qwt_plot_item.html#a3967414c7542e267d0c2793f02be7241">QwtPlotItem::legendChanged</a></div><div class="ttdeci">virtual void legendChanged()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00491">qwt_plot_item.cpp:491</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_a57d90e4146133b59d589c71b3a643e82"><div class="ttname"><a href="class_qwt_plot_item.html#a57d90e4146133b59d589c71b3a643e82">QwtPlotItem::setZ</a></div><div class="ttdeci">void setZ(double z)</div><div class="ttdoc">Set the z value.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00165">qwt_plot_item.cpp:165</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_a5a335be8ff488809a2cf7f4b734ad1b6"><div class="ttname"><a href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">QwtPlotItem::setItemAttribute</a></div><div class="ttdeci">void setItemAttribute(ItemAttribute, bool on=true)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00228">qwt_plot_item.cpp:228</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ab149ac85e233ce9cedf2f2f2af871bf3a0619b6d42554232a9b6f4c79f69af8c3"><div class="ttname"><a href="class_qwt_plot_item.html#ab149ac85e233ce9cedf2f2f2af871bf3a0619b6d42554232a9b6f4c79f69af8c3">QwtPlotItem::Rtti_PlotVectorField</a></div><div class="ttdeci">@ Rtti_PlotVectorField</div><div class="ttdoc">For QwtPlotVectorField.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8h_source.html#l00129">qwt_plot_item.h:129</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_abe0e8a39aceef9a600b73e02550a9704ae0c9811915d496eaacbd749724647f13"><div class="ttname"><a href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704ae0c9811915d496eaacbd749724647f13">QwtPlotItem::RenderAntialiased</a></div><div class="ttdeci">@ RenderAntialiased</div><div class="ttdoc">Enable antialiasing.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8h_source.html#l00207">qwt_plot_item.h:206</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_aca66d2161c8a6caf5ebef82f59770d15"><div class="ttname"><a href="class_qwt_plot_item.html#aca66d2161c8a6caf5ebef82f59770d15">QwtPlotItem::testRenderHint</a></div><div class="ttdeci">bool testRenderHint(RenderHint) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00332">qwt_plot_item.cpp:332</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ad956fdbce5b0721abccce6d09fe4d5ce"><div class="ttname"><a href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">QwtPlotItem::itemChanged</a></div><div class="ttdeci">virtual void itemChanged()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8cpp_source.html#l00481">qwt_plot_item.cpp:481</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176"><div class="ttname"><a href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176">QwtPlotItem::Legend</a></div><div class="ttdeci">@ Legend</div><div class="ttdoc">The item is represented on the legend.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8h_source.html#l00150">qwt_plot_item.h:150</a></div></div>
<div class="ttc" id="aclass_qwt_plot_item_html_ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48"><div class="ttname"><a href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48">QwtPlotItem::AutoScale</a></div><div class="ttdeci">@ AutoScale</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__item_8h_source.html#l00157">qwt_plot_item.h:157</a></div></div>
<div class="ttc" id="aclass_qwt_plot_series_item_html"><div class="ttname"><a href="class_qwt_plot_series_item.html">QwtPlotSeriesItem</a></div><div class="ttdoc">Base class for plot items representing a series of samples.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__seriesitem_8h_source.html#l00024">qwt_plot_seriesitem.h:26</a></div></div>
<div class="ttc" id="aclass_qwt_plot_series_item_html_a6361818c1d22e8ff4142ecdc755b54a9"><div class="ttname"><a href="class_qwt_plot_series_item.html#a6361818c1d22e8ff4142ecdc755b54a9">QwtPlotSeriesItem::dataChanged</a></div><div class="ttdeci">virtual void dataChanged() override</div><div class="ttdoc">dataChanged() indicates, that the series has been changed.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__seriesitem_8cpp_source.html#l00112">qwt_plot_seriesitem.cpp:112</a></div></div>
<div class="ttc" id="aclass_qwt_plot_series_item_html_add9915c6088f9854826c0f91e9fd78cd"><div class="ttname"><a href="class_qwt_plot_series_item.html#add9915c6088f9854826c0f91e9fd78cd">QwtPlotSeriesItem::boundingRect</a></div><div class="ttdeci">virtual QRectF boundingRect() const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__seriesitem_8cpp_source.html#l00097">qwt_plot_seriesitem.cpp:97</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html"><div class="ttname"><a href="class_qwt_plot_vector_field.html">QwtPlotVectorField</a></div><div class="ttdoc">A plot item, that represents a vector field.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00030">qwt_plot_vectorfield.h:33</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a01fd3e6e440e531789e306d8c507f5d9"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a01fd3e6e440e531789e306d8c507f5d9">QwtPlotVectorField::brush</a></div><div class="ttdeci">QBrush brush() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00379">qwt_plot_vectorfield.cpp:379</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a0be7b670f4df03bf05c82e6b3a457441"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a0be7b670f4df03bf05c82e6b3a457441">QwtPlotVectorField::legendIcon</a></div><div class="ttdeci">virtual QwtGraphic legendIcon(int index, const QSizeF &amp;) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00770">qwt_plot_vectorfield.cpp:770</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a0cc63792d45e1d58310c54dfbf05e571"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571">QwtPlotVectorField::IndicatorOrigin</a></div><div class="ttdeci">IndicatorOrigin</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00039">qwt_plot_vectorfield.h:40</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a0cc63792d45e1d58310c54dfbf05e571a40327520b5ebe964b2d19c148bb73d1c"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571a40327520b5ebe964b2d19c148bb73d1c">QwtPlotVectorField::OriginCenter</a></div><div class="ttdeci">@ OriginCenter</div><div class="ttdoc">The arrow is centered at the sample position.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00049">qwt_plot_vectorfield.h:48</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a0cc63792d45e1d58310c54dfbf05e571acf5b22bce1919d4cb2c6c7fd79e307a7"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571acf5b22bce1919d4cb2c6c7fd79e307a7">QwtPlotVectorField::OriginHead</a></div><div class="ttdeci">@ OriginHead</div><div class="ttdoc">symbol points to the sample position</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00042">qwt_plot_vectorfield.h:42</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a0cc63792d45e1d58310c54dfbf05e571adc0cce3f3fcbdf529e94f603bdc06bee"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a0cc63792d45e1d58310c54dfbf05e571adc0cce3f3fcbdf529e94f603bdc06bee">QwtPlotVectorField::OriginTail</a></div><div class="ttdeci">@ OriginTail</div><div class="ttdoc">The arrow starts at the sample position.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00045">qwt_plot_vectorfield.h:45</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a0eed2287ed78805a42a0e2c84dd36423"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a0eed2287ed78805a42a0e2c84dd36423">QwtPlotVectorField::rtti</a></div><div class="ttdeci">virtual int rtti() const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00503">qwt_plot_vectorfield.cpp:503</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a18c5437daf773dc727a00538d6488b77"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a18c5437daf773dc727a00538d6488b77">QwtPlotVectorField::colorMap</a></div><div class="ttdeci">const QwtColorMap * colorMap() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00590">qwt_plot_vectorfield.cpp:590</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a19009160ac0a5e6be44fffc0455654f7"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a19009160ac0a5e6be44fffc0455654f7">QwtPlotVectorField::magnitudeScaleFactor</a></div><div class="ttdeci">double magnitudeScaleFactor() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00440">qwt_plot_vectorfield.cpp:440</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a1a63b3f5293ff6fbfb931df342e8d7d2"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a1a63b3f5293ff6fbfb931df342e8d7d2">QwtPlotVectorField::pen</a></div><div class="ttdeci">QPen pen() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00351">qwt_plot_vectorfield.cpp:351</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a213fd01893696958f68b2e777cb221a7"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a213fd01893696958f68b2e777cb221a7">QwtPlotVectorField::setSamples</a></div><div class="ttdeci">void setSamples(const QVector&lt; QwtVectorFieldSample &gt; &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00541">qwt_plot_vectorfield.cpp:541</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a26009c05bb8b9488c1324428cb0755e1"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a26009c05bb8b9488c1324428cb0755e1">QwtPlotVectorField::setRasterSize</a></div><div class="ttdeci">void setRasterSize(const QSizeF &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00450">qwt_plot_vectorfield.cpp:450</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a283e774553b87acd67d08653018d8ca4"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a283e774553b87acd67d08653018d8ca4">QwtPlotVectorField::drawSeries</a></div><div class="ttdeci">virtual void drawSeries(QPainter *, const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QRectF &amp;canvasRect, int from, int to) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00807">qwt_plot_vectorfield.cpp:807</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a2e5aea41d8d9e8dabb8e6c5a5ec49d1a"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a2e5aea41d8d9e8dabb8e6c5a5ec49d1a">QwtPlotVectorField::setBrush</a></div><div class="ttdeci">void setBrush(const QBrush &amp;)</div><div class="ttdoc">Assign a brush.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00364">qwt_plot_vectorfield.cpp:364</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a4382fb20131213483e59e699b01bb870"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a4382fb20131213483e59e699b01bb870">QwtPlotVectorField::setMinArrowLength</a></div><div class="ttdeci">void setMinArrowLength(double)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00658">qwt_plot_vectorfield.cpp:658</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a457c094e431ed8fdab9a9d4a57e5ad11"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a457c094e431ed8fdab9a9d4a57e5ad11">QwtPlotVectorField::setSymbol</a></div><div class="ttdeci">void setSymbol(QwtVectorFieldSymbol *)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00516">qwt_plot_vectorfield.cpp:516</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a463593c25a15e635dc3b19da473f1fb8"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a463593c25a15e635dc3b19da473f1fb8">QwtPlotVectorField::testPaintAttribute</a></div><div class="ttdeci">bool testPaintAttribute(PaintAttribute) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00496">qwt_plot_vectorfield.cpp:496</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a484cd29099497da1f69b361f681d7b75"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a484cd29099497da1f69b361f681d7b75">QwtPlotVectorField::drawSymbol</a></div><div class="ttdeci">virtual void drawSymbol(QPainter *, double x, double y, double vx, double vy) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00975">qwt_plot_vectorfield.cpp:975</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a49975f6e721381c1745e32a5ee6d0ca0"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a49975f6e721381c1745e32a5ee6d0ca0">QwtPlotVectorField::boundingRect</a></div><div class="ttdeci">virtual QRectF boundingRect() const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00749">qwt_plot_vectorfield.cpp:749</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a55e0e85dac0fc14a2091f5e27084c101"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a55e0e85dac0fc14a2091f5e27084c101">QwtPlotVectorField::testMagnitudeMode</a></div><div class="ttdeci">bool testMagnitudeMode(MagnitudeMode) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00619">qwt_plot_vectorfield.cpp:619</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a5e796f08eb2c881651e32af04842a04e"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a5e796f08eb2c881651e32af04842a04e">QwtPlotVectorField::setMagnitudeScaleFactor</a></div><div class="ttdeci">void setMagnitudeScaleFactor(double factor)</div><div class="ttdoc">Set the magnitudeScaleFactor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00417">qwt_plot_vectorfield.cpp:417</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a643264dd19b2ce33d766927c12b18783"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a643264dd19b2ce33d766927c12b18783">QwtPlotVectorField::symbol</a></div><div class="ttdeci">const QwtVectorFieldSymbol * symbol() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00532">qwt_plot_vectorfield.cpp:532</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a661cdf75a6bac53a3073d11c69775a80"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a661cdf75a6bac53a3073d11c69775a80">QwtPlotVectorField::setMaxArrowLength</a></div><div class="ttdeci">void setMaxArrowLength(double)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00688">qwt_plot_vectorfield.cpp:688</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a66f567f4f40bbacf0e36a3df73a2cc47"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a66f567f4f40bbacf0e36a3df73a2cc47">QwtPlotVectorField::drawSymbols</a></div><div class="ttdeci">virtual void drawSymbols(QPainter *, const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QRectF &amp;canvasRect, int from, int to) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00847">qwt_plot_vectorfield.cpp:847</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a6804e53113a7bc48fd2bf3cbe8428c03"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a6804e53113a7bc48fd2bf3cbe8428c03">QwtPlotVectorField::setColorMap</a></div><div class="ttdeci">void setColorMap(QwtColorMap *)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00571">qwt_plot_vectorfield.cpp:571</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a6fe87ee4b421ef06bd58606491b02ff0"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0">QwtPlotVectorField::MagnitudeMode</a></div><div class="ttdeci">MagnitudeMode</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00075">qwt_plot_vectorfield.h:76</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a6fe87ee4b421ef06bd58606491b02ff0a651b4cb5bb5f2e02f8335712b72d8be6"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0a651b4cb5bb5f2e02f8335712b72d8be6">QwtPlotVectorField::MagnitudeAsLength</a></div><div class="ttdeci">@ MagnitudeAsLength</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00088">qwt_plot_vectorfield.h:87</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a6fe87ee4b421ef06bd58606491b02ff0ae09510491d44145cf28c4a9081aa2557"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a6fe87ee4b421ef06bd58606491b02ff0ae09510491d44145cf28c4a9081aa2557">QwtPlotVectorField::MagnitudeAsColor</a></div><div class="ttdeci">@ MagnitudeAsColor</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00081">qwt_plot_vectorfield.h:81</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a7248530153feb2f93c579b73dcafec08"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a7248530153feb2f93c579b73dcafec08">QwtPlotVectorField::PaintAttribute</a></div><div class="ttdeci">PaintAttribute</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00055">qwt_plot_vectorfield.h:56</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a7755b9cf2f8dde31abcabc177c655930"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a7755b9cf2f8dde31abcabc177c655930">QwtPlotVectorField::QwtPlotVectorField</a></div><div class="ttdeci">QwtPlotVectorField(const QString &amp;title=QString())</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00302">qwt_plot_vectorfield.cpp:302</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a7e3b547c095cc7dbed4bcb204e923fb1"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a7e3b547c095cc7dbed4bcb204e923fb1">QwtPlotVectorField::setMagnitudeRange</a></div><div class="ttdeci">void setMagnitudeRange(const QwtInterval &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00632">qwt_plot_vectorfield.cpp:632</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a80eceb3f55d757875dd72c849e14787f"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a80eceb3f55d757875dd72c849e14787f">QwtPlotVectorField::setPen</a></div><div class="ttdeci">void setPen(const QPen &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00336">qwt_plot_vectorfield.cpp:336</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a89d58196d753477d0b00a81fc2b2ada2"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a89d58196d753477d0b00a81fc2b2ada2">QwtPlotVectorField::MagnitudeModes</a></div><div class="ttdeci">QFlags&lt; MagnitudeMode &gt; MagnitudeModes</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00090">qwt_plot_vectorfield.h:90</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a97cf430b53666f8d68ca117b9eec3ceb"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a97cf430b53666f8d68ca117b9eec3ceb">QwtPlotVectorField::rasterSize</a></div><div class="ttdeci">QSizeF rasterSize() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00463">qwt_plot_vectorfield.cpp:463</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_a9a101453ba226a37850a75c6e05eea26"><div class="ttname"><a href="class_qwt_plot_vector_field.html#a9a101453ba226a37850a75c6e05eea26">QwtPlotVectorField::~QwtPlotVectorField</a></div><div class="ttdeci">virtual ~QwtPlotVectorField()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00309">qwt_plot_vectorfield.cpp:309</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_aa16b40c0eb7c57a78314d6c22455fb62"><div class="ttname"><a href="class_qwt_plot_vector_field.html#aa16b40c0eb7c57a78314d6c22455fb62">QwtPlotVectorField::PaintAttributes</a></div><div class="ttdeci">QFlags&lt; PaintAttribute &gt; PaintAttributes</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8h_source.html#l00067">qwt_plot_vectorfield.h:67</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_aa3aa467051e319f919b9286002a2071f"><div class="ttname"><a href="class_qwt_plot_vector_field.html#aa3aa467051e319f919b9286002a2071f">QwtPlotVectorField::setPaintAttribute</a></div><div class="ttdeci">void setPaintAttribute(PaintAttribute, bool on=true)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00475">qwt_plot_vectorfield.cpp:475</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_ab7a19eb6cfbace3f9c4415c74133e087"><div class="ttname"><a href="class_qwt_plot_vector_field.html#ab7a19eb6cfbace3f9c4415c74133e087">QwtPlotVectorField::maxArrowLength</a></div><div class="ttdeci">double maxArrowLength() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00705">qwt_plot_vectorfield.cpp:705</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_ac97e94bc324dedaedec0d3bab80bd4fe"><div class="ttname"><a href="class_qwt_plot_vector_field.html#ac97e94bc324dedaedec0d3bab80bd4fe">QwtPlotVectorField::dataChanged</a></div><div class="ttdeci">virtual void dataChanged() override</div><div class="ttdoc">dataChanged() indicates, that the series has been changed.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l01034">qwt_plot_vectorfield.cpp:1034</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_ad2913c3eba5c71bdc378d150f374857c"><div class="ttname"><a href="class_qwt_plot_vector_field.html#ad2913c3eba5c71bdc378d150f374857c">QwtPlotVectorField::magnitudeRange</a></div><div class="ttdeci">QwtInterval magnitudeRange() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00645">qwt_plot_vectorfield.cpp:645</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_ad74a054c1e46d3d3a80845a7e4c1975f"><div class="ttname"><a href="class_qwt_plot_vector_field.html#ad74a054c1e46d3d3a80845a7e4c1975f">QwtPlotVectorField::setIndicatorOrigin</a></div><div class="ttdeci">void setIndicatorOrigin(IndicatorOrigin)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00390">qwt_plot_vectorfield.cpp:390</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_ae1de36a7bdd878735852c9567773586a"><div class="ttname"><a href="class_qwt_plot_vector_field.html#ae1de36a7bdd878735852c9567773586a">QwtPlotVectorField::arrowLength</a></div><div class="ttdeci">virtual double arrowLength(double magnitude) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00726">qwt_plot_vectorfield.cpp:726</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_ae5fd282a030036785e35cbad1d5e9e0c"><div class="ttname"><a href="class_qwt_plot_vector_field.html#ae5fd282a030036785e35cbad1d5e9e0c">QwtPlotVectorField::indicatorOrigin</a></div><div class="ttdeci">IndicatorOrigin indicatorOrigin() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00401">qwt_plot_vectorfield.cpp:401</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_af56fcb52d233930212c26a9fb048caea"><div class="ttname"><a href="class_qwt_plot_vector_field.html#af56fcb52d233930212c26a9fb048caea">QwtPlotVectorField::minArrowLength</a></div><div class="ttdeci">double minArrowLength() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00675">qwt_plot_vectorfield.cpp:675</a></div></div>
<div class="ttc" id="aclass_qwt_plot_vector_field_html_afe807893fae74709ff417c1bd51f0ed2"><div class="ttname"><a href="class_qwt_plot_vector_field.html#afe807893fae74709ff417c1bd51f0ed2">QwtPlotVectorField::setMagnitudeMode</a></div><div class="ttdeci">void setMagnitudeMode(MagnitudeMode, bool on=true)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__plot__vectorfield_8cpp_source.html#l00602">qwt_plot_vectorfield.cpp:602</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html"><div class="ttname"><a href="class_qwt_scale_map.html">QwtScaleMap</a></div><div class="ttdoc">A scale map.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00026">qwt_scale_map.h:27</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a283100be40b08db7df078b8a0ee1d19c"><div class="ttname"><a href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">QwtScaleMap::isInverting</a></div><div class="ttdeci">bool isInverting() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00164">qwt_scale_map.h:164</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a456d76a849af8c465692c0481bdd12ad"><div class="ttname"><a href="class_qwt_scale_map.html#a456d76a849af8c465692c0481bdd12ad">QwtScaleMap::pDist</a></div><div class="ttdeci">double pDist() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00115">qwt_scale_map.h:115</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a504f1627e0e02ddac03d2ce46507b865"><div class="ttname"><a href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a></div><div class="ttdeci">double transform(double s) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00137">qwt_scale_map.h:137</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a953eb3e6584d8a6ca4d5fff98a9a0aa0"><div class="ttname"><a href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0">QwtScaleMap::sDist</a></div><div class="ttdeci">double sDist() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00123">qwt_scale_map.h:123</a></div></div>
<div class="ttc" id="aclass_qwt_series_data_html"><div class="ttname"><a href="class_qwt_series_data.html">QwtSeriesData</a></div><div class="ttdoc">Abstract interface for iterating over samples.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__series__data_8h_source.html#l00049">qwt_series_data.h:50</a></div></div>
<div class="ttc" id="aclass_qwt_series_data_html_a3cfe5b26fc55a887ac85b0103ae80a3e"><div class="ttname"><a href="class_qwt_series_data.html#a3cfe5b26fc55a887ac85b0103ae80a3e">QwtSeriesData::size</a></div><div class="ttdeci">virtual size_t size() const =0</div></div>
<div class="ttc" id="aclass_qwt_series_data_html_ae8650d16c07c58f01897ab48658a3266"><div class="ttname"><a href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">QwtSeriesData::sample</a></div><div class="ttdeci">virtual T sample(size_t i) const =0</div></div>
<div class="ttc" id="aclass_qwt_series_store_html_a09f98212173ac6de604d8b63ebf6bb0a"><div class="ttname"><a href="class_qwt_series_store.html#a09f98212173ac6de604d8b63ebf6bb0a">QwtSeriesStore&lt; QwtVectorFieldSample &gt;::sample</a></div><div class="ttdeci">QwtVectorFieldSample sample(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__series__store_8h_source.html#l00097">qwt_series_store.h:158</a></div></div>
<div class="ttc" id="aclass_qwt_series_store_html_a6391ad8acc1b3946006451f54a6558de"><div class="ttname"><a href="class_qwt_series_store.html#a6391ad8acc1b3946006451f54a6558de">QwtSeriesStore&lt; QwtVectorFieldSample &gt;::dataSize</a></div><div class="ttdeci">virtual size_t dataSize() const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__series__store_8h_source.html#l00103">qwt_series_store.h:175</a></div></div>
<div class="ttc" id="aclass_qwt_series_store_html_aae258d330c8d1bd2057b1f0bc13700f9"><div class="ttname"><a href="class_qwt_series_store.html#aae258d330c8d1bd2057b1f0bc13700f9">QwtSeriesStore&lt; QwtVectorFieldSample &gt;::data</a></div><div class="ttdeci">QwtSeriesData&lt; QwtVectorFieldSample &gt; * data()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__series__store_8h_source.html#l00088">qwt_series_store.h:146</a></div></div>
<div class="ttc" id="aclass_qwt_series_store_html_add3ce83fe90e976b75a0ebaa79caee4c"><div class="ttname"><a href="class_qwt_series_store.html#add3ce83fe90e976b75a0ebaa79caee4c">QwtSeriesStore&lt; QwtVectorFieldSample &gt;::setData</a></div><div class="ttdeci">void setData(QwtSeriesData&lt; QwtVectorFieldSample &gt; *series)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__series__store_8h_source.html#l00085">qwt_series_store.h:164</a></div></div>
<div class="ttc" id="aclass_qwt_series_store_html_aeb88b810f579a6cbf3af43b55aa073c0"><div class="ttname"><a href="class_qwt_series_store.html#aeb88b810f579a6cbf3af43b55aa073c0">QwtSeriesStore&lt; QwtVectorFieldSample &gt;::dataRect</a></div><div class="ttdeci">virtual QRectF dataRect() const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__series__store_8h_source.html#l00111">qwt_series_store.h:184</a></div></div>
<div class="ttc" id="aclass_qwt_text_html"><div class="ttname"><a href="class_qwt_text.html">QwtText</a></div><div class="ttdoc">A class representing a text.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text_8h_source.html#l00051">qwt_text.h:52</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_data_html"><div class="ttname"><a href="class_qwt_vector_field_data.html">QwtVectorFieldData</a></div><div class="ttdoc">Interface for iterating over an array of vector field samples.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__series__data_8h_source.html#l00249">qwt_series_data.h:250</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_sample_html"><div class="ttname"><a href="class_qwt_vector_field_sample.html">QwtVectorFieldSample</a></div><div class="ttdoc">Sample used in vector fields.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__samples_8h_source.html#l00243">qwt_samples.h:244</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_sample_html_a0e60522aea7d65d8340d691f797ddeb9"><div class="ttname"><a href="class_qwt_vector_field_sample.html#a0e60522aea7d65d8340d691f797ddeb9">QwtVectorFieldSample::y</a></div><div class="ttdeci">double y</div><div class="ttdoc">y coordinate of the position</div><div class="ttdef"><b>Definition:</b> <a href="qwt__samples_8h_source.html#l00260">qwt_samples.h:260</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_sample_html_a8414f5ce56525413f83bb689a1bb1c79"><div class="ttname"><a href="class_qwt_vector_field_sample.html#a8414f5ce56525413f83bb689a1bb1c79">QwtVectorFieldSample::isNull</a></div><div class="ttdeci">bool isNull() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__samples_8h_source.html#l00309">qwt_samples.h:309</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_sample_html_aabefe04201a2d6b1d55228dee122771a"><div class="ttname"><a href="class_qwt_vector_field_sample.html#aabefe04201a2d6b1d55228dee122771a">QwtVectorFieldSample::vx</a></div><div class="ttdeci">double vx</div><div class="ttdoc">x coordinate of the vector</div><div class="ttdef"><b>Definition:</b> <a href="qwt__samples_8h_source.html#l00263">qwt_samples.h:263</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_sample_html_ac5fb73df88676e3469f0113db40b8935"><div class="ttname"><a href="class_qwt_vector_field_sample.html#ac5fb73df88676e3469f0113db40b8935">QwtVectorFieldSample::x</a></div><div class="ttdeci">double x</div><div class="ttdoc">x coordinate of the position</div><div class="ttdef"><b>Definition:</b> <a href="qwt__samples_8h_source.html#l00257">qwt_samples.h:257</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_sample_html_af219932e3a663f55b9a3a785f58cf86c"><div class="ttname"><a href="class_qwt_vector_field_sample.html#af219932e3a663f55b9a3a785f58cf86c">QwtVectorFieldSample::vy</a></div><div class="ttdeci">double vy</div><div class="ttdoc">y coordinate of the vector</div><div class="ttdef"><b>Definition:</b> <a href="qwt__samples_8h_source.html#l00266">qwt_samples.h:266</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_symbol_html"><div class="ttname"><a href="class_qwt_vector_field_symbol.html">QwtVectorFieldSymbol</a></div><div class="ttdef"><b>Definition:</b> <a href="qwt__vectorfield__symbol_8h_source.html#l00032">qwt_vectorfield_symbol.h:33</a></div></div>
<div class="ttc" id="aclass_qwt_vector_field_symbol_html_a1787b46abc657e989b32b2cceab8bf05"><div class="ttname"><a href="class_qwt_vector_field_symbol.html#a1787b46abc657e989b32b2cceab8bf05">QwtVectorFieldSymbol::length</a></div><div class="ttdeci">virtual qreal length() const =0</div></div>
<div class="ttc" id="aclass_qwt_vector_field_symbol_html_a7c78e02177c6edd9a932bb7926d024a1"><div class="ttname"><a href="class_qwt_vector_field_symbol.html#a7c78e02177c6edd9a932bb7926d024a1">QwtVectorFieldSymbol::paint</a></div><div class="ttdeci">virtual void paint(QPainter *) const =0</div><div class="ttdoc">Draw the symbol/arrow.</div></div>
<div class="ttc" id="aclass_qwt_vector_field_symbol_html_af40e032a493977db97f01f51aef4d54c"><div class="ttname"><a href="class_qwt_vector_field_symbol.html#af40e032a493977db97f01f51aef4d54c">QwtVectorFieldSymbol::setLength</a></div><div class="ttdeci">virtual void setLength(qreal length)=0</div></div>
<div class="ttc" id="aclass_qwt_vector_field_thin_arrow_html"><div class="ttname"><a href="class_qwt_vector_field_thin_arrow.html">QwtVectorFieldThinArrow</a></div><div class="ttdef"><b>Definition:</b> <a href="qwt__vectorfield__symbol_8h_source.html#l00081">qwt_vectorfield_symbol.h:82</a></div></div>
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